Electric fixture.



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ELECTRIC FIXTURE APPLICATION FILED $06.18, 1913.

Wme55e5/ G. A. HARTER.

ELECTRIC FIXTURE.

APPLICATION FILED AUG-l8. 1913- ]Pzmmed Dec. 11, 191?.

2 SHEETS-SHEET 2- GUSTAV A. HABTER, OF CHICAGO, ILLINOIS.

ELECTRIC FIXTURE.

recess.

Specification of Letters Patent.

Patented Dec. 11, 121W.

Application filed August 18, 1913. Serial No. 785,259.

To all whom it may concern.-

Be it known that I, .GUs'rAv A.,HARTER, acitizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Electric Fixtures,of'which the following is a s ecification.

This invention relates to a xture particularly adapted for use inconnection with the electric lamps in which the lamp socket, and thelamp globes and shades may be separately adjusted and held relatively toeach other.

The invention consists in the features of novelty in the construction,combination and arrangement of the several parts generally shown in theaccompanying drawings and described in the specification but moreparticularly pointed out in the appended claims.

In the drawings, Figure 1 isa side elevation of a fixture with the shadeand globe in sections embodying my invention; Fig. 2 is a sectional viewof the socket clamping device; Fig. 3 is a detail view partly in section of a part of the fixture; Fig. 4.-is a cross-sectional view of alocking device; Fig. 5 is a sectional elevation of the locking device;Fig. 6 shows the fixture supporting a ceiling plate with an adjustableeccentric support for the fixture; Fig. 7 is a detail of the eccentricadjustable support, and Fig.

8 shows the fixture in connection with the flerent form of shade orglobe.

It is very desirable to have a sup ort for electric shades andglobes, aswel as for lamp sockets, which may be freely adjusted to accommodatevarious sizes and shapes of shades, globes and lamps, and also toprovide means for facilitating the connection of the lamp socket withtheplug or conduit to which the fixture issecured. The presentinvention-is for a fixture of this class.

A yoke member'lO comprises two arall'el extremities joined by asubstantially flat perforated intermediate portion 11, the edges 12 ofwhich are adapted to embrace an angular headed nut 13 which is inter-'nallythreaded throughout its length and externall threaded for a portionof its length, t e externally threaded portion being adapted to beinserted through the perforation of the intermediate portion 11.

The parallelextremities are formed ad- 7' jacent their ends with aportion 1t of'reduced width forming a shouldered head or extremity 15.Slidable up and down along the portion of reduced width are theextremities of a pair of socket clamping members 16 which are less inwidth than the length of the portion of reduced width so that they maybe moved up and down with respect to the yoke member .10 for adjustment.These socket clamping members 16 are connected and clamped against theextremities of the yoke member by means of screws 17. A socket 18 isclamped by the screws in position between the clamping devices and thesocket is separately movable with respect to the clampin members, and,of course, is movable with the members when they are adjusted withrespect to the yoke member. The object of this adjustment is not only toraise and lower the lamp in the socket but is also toprovide a spacebetween the yoke and the socket by means of which conductors 19,connected to the socket, may be joined to other conductors projectingthrough the plu or from a conduit 20 by means of whic the fixture issupported. A globe or shade-holding device comprises two parallel arms21 vided with threaded perforations which extend'between the parallelextremities of the yoke member 10 and the fastening screws 17 on eachside, and the extremities of the yoke member are also provided withunthreaded perforations, and screws 22 are inserted through the, yokemembers and threaded into the arms 21, whereby the height of theshade-holding device may be adjusted independently, as desired. In orderto lock the screws 22 in place a locking clip 23 is provided on eachside of the yoke member which partially embraces the extremity of theyoke member and the arm 21, as shown more clearly in Fig. 4, and isslidable thereon with an enlarged portion 24 to en age the head of thescrew 22 to prevent it from being disen aged from its connection. Theshade-hol prises adjustable members 25 by means of which a globe orshade 26 may be held in position.

The fixture is supported by threading the member 13 upon the endof aplug or a conduit 20, and a shade 27 may be provided proing device alsopreferably com with an extending portion which covers the holdingdevices and also covers the adjustable members 25 of the globe'holders.This shade 27 is provided with a perforation which adapts it to beinserted over the member 13'with a washer 28 between them, and it issecured in place thereon by means of an outer lock-nut 29 with a washer30 between them. These washers are of resilient or flexible material sothat the shade will not be injured in securing it in position.

If desired, the globe or shade-holding device may consist of a threadedmember 31 (see Fig. 6) to which the arms 21 are connected, and athreaded member 32 having a projecting flanged portion to whichshadeholding devices 33 are adjustable to hold a shade of any size inposition, the flanged portion also acting as a support for a ceilingplate 34:. In order to provide an ali ning means for a number offixtures a support device comprising spaced members 35 and 36 is securedto the yoke member, and it in turn is secured to the ceiling or othersupport by means of screws 37 inserted through parallel slots 38 in oneof the members. This same member is alsoprovided with an opening 39extending in one direction from the center parallel with the slots 38through which 80 the conduit 20 extends. By adjusting this supportrelatively with respect to the conduit it may be alined in any directionani amount equal to the length of adjustment of the conduit in the slot39. Another embodiment of the invention is shown in Fig. 8, in which theshade-holding device comprises a frusto-conical support 40 secured-tothe arms 21 upon which the upper edge of a shade 41 is engaged. In thisconstruction the yoke member is secured directly to conduit 20 and ahood 42 is adjustable uponthe conduit and held in place by a screw 43,the hood covering the fixture and engaging the screws 23 to pre venttheir removal with the lower edge of the hood pressingagainst the globeor shade 41 to hold it firmly in position.

It is to be understood that this fixture is intended to accommodateglobes and shades of various sizes and it is customary to have globes ofvarious sizes with the same size su porting portion. Vhat I claim is:

-A device of the class described comprising a U-shaped yoke member, apair of socket clamping members each having extremities to engage theedges of the extremities of the U-shaped member, and fastening means toadjustably secure the socket 560 clamping members together at both oftheir extremities and to permit the adjustment of i the members upon theextremities of the U- shaped member. 2. A device of the class describedcom as prising a single yoke member with parallel extremities, theparallel extremities of which are reduced in width adjacent the endsthereof, socket clamping members each having extremities to engage theedges of the yoke memberin the portion of the reduced width thereof, andmeans adjustably to secure the socket clamping members together adjacentthe ends thereof.

3. A device of the class described comprising a yoke member withparallel extremities, the extremities of which are reduced in widthadjacent the ends thereof,

a pair of socket clamping members adjustable with respect to each otherand each havin extremities to engage the edges of the yo e member in theportion of the reduced width thereof, the clamping members bein less inwidth than the length of the reduce portion of the yoke member so thatthey are adjustable along the yoke member, and means to secure theclamping members to- -.gether for gripping a socket and to grip theedges of-the yo e member whereby they are adjustably positioned withrespect thereto.

4. In a fixture device, the combination of a U-shaped yoke member havingportions of reduced width adjacent the extremities thereof with ashouldered portion at the end, of socket clamping members adjustablealong said portion of reduced width, and a single fastening device ateach end to secure the socket clamping memberstogether to rip the socketand to clamp them against the extremities of the U-shaped member in thereduced portion, the shoulder preventing them from becoming disengagedfrom the yoke member.

5. In an electric fixture, a single rigid member with parallelextremities, a lamp socket, meansto give the socket a double verticaladjustment in the extremities, and a shade holding device having avertically adjustable connection with the extremities of said member.

6. A device of the class described comprising a single rigid yoke-shapedmember with parallel extremities, a shade-holding device withcorresponding parallel holding extremities, and means to secure thecorresponding parallel extremities together at different heights.

7. In a device of the class described, the combination of a rigidU-shaped member, a shadegholding device comprising parallel supportingarms, means to secure the par- 12o allel supporting arms to theextremities of the U-shaped member at different heights, and lockingmeans for the said securing means.

8. In a device of the class described, the combination with a U-shapedmember having a perforation" in each extremity, of a shade-holdingdevice having corresponding supporting arms with threaded perforationstherein, fastening screws -muirable freely naaaaea through theperforations in the tf-shaped member and en a 'ng in the threadedperforations, and 0c ing means disconnected from and movable over theheads of the screws to prevent their removal.

9. .][n a device of the class described, the combination with a U-shapedsupporting member, of a shade-holding device adjustable with respectthereto, means for securing the device in any adjusted position,adjustable shade grippers in connection with the device, and means for.lockingthe securing means between the U-shaped member and the deviceand for covering the adjusted shade holder.

10. In a device of the class described, the combination with a portingmember, of a socket. clamp adjustable at various heights in the member,and a shade-holder adjustable in height with respect to the member. a

11. ][n a device of the class described, the combination with a U-shapedsupporting member, of an adjustable socket clamp comprising a pair ofmembers adjustably secured together and gripping the extremities of themember, an adjustable shade-holder with parallel supporting armsextending betweenv the said securing means and the extremities of the.member, and means to secure the said arms adj ustably to the extremitiesof said member.

12. In a device of the class described, the combination of a U-shapedsupporting memher having a flattened perforated portion intermediate theends, and a headed nut threaded internally-and externally adapted to beinserted through the perforation in the member. and having an angularheaded portion disposed adjacent the member, the sides of the memberbeing bent over to engage the opposite angular faces of the head of thenut to'hold it firmly in position with respect to the member.

13. A device of the class described comprising a [Ll-shaped holder witha perforatedlntermediate portion, a fastening nut secured thereto andextending through the perforation, a shade-holder having upwardlyextending arms, and means to secure and vertically adjust the shadeholder in the extremities of the Ll-shaped member.

14. A device of the class described comprising a ttshaped holder with aperforated intermediate portion, a fastening nut secured thereto andextendin through the erforation, a vertically adjustable shade holder,and a vertically ad ustable socket clamp having fastening devices tosecure it to the extremities of the U-shaped member.

15, A device of the classdescribed comprising a U-shapedholder withaperforated intermediate portion, a fastening nut secured thereto andextending through the.

perforation, a shade-holder comprising arms Single U-shapedsupcorresponding to the extremities of the U- shaped "member, meansadjustably to secure the holder to the said member, a socket clampcbmprising a pair of members adjustable lengthwise of the U-shapedmember, and fastening devices adjacent the ends thereof to secure themembers adjustably together and to clamp the members in any adustedposition against the extremities of the U-shaped me her.

16. In a device of the class described, the combination with a U-shapedyoke member having a perforated portion intermediate the ends, a eadednut adapted to be inserted through the perforation threaded internallyand externally and secured to the yoke mem-' her, a lamp socket,insulated conductors leadin therefrom and adapted to extend througdn thenut, a socket clamping device adjustable with respect to the member,means to clamp the socket adjustably in poshade disposed upon the nut,means upon the nut to protect the shade on both sides thereof, and alocking nut movable on the other nut to secure the shade in placeagainst the yoke member.

18. ][n a device of the. class-described, thecombination with a U-shapedoke member having a perforated interme iate portion, of .a headedsupporting member ada ted to be inserted through and extending eyond theyoke member, a shade-holding device comprising arms corresponding to theextremities ofthe yoke member, means adjust ably to secure t member, alam ing therefrom t ough the supporting memher, a socket clamping devicecomprising a pair of members, and means to clamp them about the socketagainst the edges of the extremities of the yoke member, the socketbeing movable in the socket clam ing device and the socket clampingdevice h ratel adjustable with respect to the yoke mem er, a shadehaving a perforated portion through which the supporting member isadapted to extend, the shade inclosing the other members and device,washers disposed on both sides of the perforated ortion of the shade,and a lock nut movable on the supporting member and adapted to hold theshade in position. v

19. In an electric fixture the combination with a yoke member adapted tobe centered e shade-holder to the yoke eing sepa int lllltit socket,conductors 'extenda justable shade-holding device, of avariable supportfor the yoke member comprising a plate having an elongatedslot'extending from the center toward one side thereof, lateral slots,and fastening screws adapted to be inserted through said lateral slotsfor securing the mpport in position.

21. In a device of the class described, the combination with a yokemember having a perforated portion intermediate the ends a nut adaptedto be inserted through the per foration threaded externally and securedto the yoke member through its perforation, a lamp socket, insulatedconductors leading therefrom and adapted to extend through the nut,means to clamp the socket and to secure it adjustably in position withrespectto the yoke member, a shade supporting device vertically'adjustable with respect to the yoke member, and adjustableshade-holding members in connection with said shade supporting device.

22. An electric fixture comprising a rigid supporting oke, a lampsocket'clamp adjustable in t e yoke, and a shade holder adjustablsupported by the yoke.

23. n electric fixture comprising a supporting .yoke, a lamp socketclamp adjustable in the yoke, and shade holding means also supported bythe yoke and adjustable wirespect thereto independently of the cla p.

24. In an electric fixture, the combination with a supporting yokehaving arallel depending arms, asocket clamp a justable in the arms andsecurable thereto in gripping a socket, and shade holding meansattachable also to the arms and depending below the extremities thereofand adjustable relatively to the clamp and the yoke.

25. In an electric fixture, a supporting yoke, shade holding meansadjustable in the yoke, a socket clam adjustable in the yoke, a lampsocket slida le in the clamp for adjustment and held in adjusted ositionwhen the clamp is secured to the yo (e.

26. In an electric fixture, a supporting yoke with depending arms, asocket clamp engaging the arms and adjustable therein, a socket engagedby the clamp and slidable in the clamp for adjustment, and a verticallyadjustable focusing shade holder also supported by the yoke arms andindependently adjustable with respect to the socket.

27. In an electric fixture, a supporting yoke with parallel arms, a lampsocket, and a socket clamp having portions to engage the socket andother portions to engage the arms and fastening means by which thesocket and arms are simultaneously gripped.

28. In an electric fixture, the combination with a fixed support, of ashade holder supported thereby, and a vertically adjustable lamp socketclamp comprising a pair of members adapted to grip both the support anda lamp socket to focus a lamp with respect to the shade by the movementof the socket in the clamp and by the movement of the clamp.

29. In an electric fixture, the combination with a yoke having parallelarms, of a lamp socket, and a vertically adjustable socket clampcomprising a pair of members adapt-.

ed to grip both the arms and the socket to vary the position of a lampwith respect to the yoke by the movement of the socket in the clamp andby the movement of the clamp in the arms.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses, on this 8th day of August, A. D.1913.

GUSTAV A. HARTER. Witnesses:

CHARLES H. SEEM, M. HARTY.

